122001112110021 has 8 divisors (see below), whose sum is σ = 162682051599264. Its totient is φ = 81327123680400.

The previous prime is 122001112110013. The next prime is 122001112110023. The reversal of 122001112110021 is 120011211100221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122001112110021 - 2³ = 122001112110013 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122001112110023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1737723951 + ... + 1737794156.

It is an arithmetic number, because the mean of its divisors is an integer number (20335256449908).

Almost surely, 2^{122001112110021} is an apocalyptic number.

It is an amenable number.

122001112110021 is a deficient number, since it is larger than the sum of its proper divisors (40680939489243).

122001112110021 is a wasteful number, since it uses less digits than its factorization.

122001112110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3475529811.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 122001112110021 its reverse (120011211100221), we get a palindrome (242012323210242).

The spelling of 122001112110021 in words is "one hundred twenty-two trillion, one billion, one hundred twelve million, one hundred ten thousand, twenty-one".